Pressure relief device for switch cabinet

The utility model discloses a pressure relief device for switch cabinet, its key lies in: pressure relief device for switch cabinet is including setting up in the pressure release cover at cubical switchboard top, and bolt and cubical switchboard top edge connection are passed through to four angles of this pressure release cover, and the pot head is equipped with compression spring and final and fixes with the nut under this bolt to it separates certain distance to make between nut and the cubical switchboard top, the pressure release cover still is provided with the pressure release hole all around. The utility model discloses simple structure, convenient to use, when the normal during operation of equipment, pressure release cover pressure release hole all around can help the inside ventilation cooling of cubical switchboard, reduces the inside probability that breaks down, in case the cubical switchboard breaks down when producing huge energy with pressure, the inside pressure jack -up pressure release co